No more vowel dropping on macOS

This reverts b408167 in spirit from haskell#4656.

Author: angerman

cabal-install/src/Distribution/Client/PackageHash.hs

@@ -149,8 +149,7 @@ hashedInstalledPackageIdShort pkghashinputs@PackageHashInputs{pkgHashPkgId} =
 --  @store/<libraryname>/libHS<libraryname>.dylib@
 -- where libraryname contains the libraries name, version and abi hash, but in
 --  @store/lib/libHS<very short libraryname>.dylib@
--- where the very short library name drops all vowels from the package name,
--- and truncates the hash to 4 bytes.
+-- where the very short library name truncates the hash to 4 bytes.
 --
 -- We therefore we only need one \@rpath entry to @store/lib@ instead of one
 -- \@rpath entry for each library. And the reduced library name saves some
@@ -170,7 +169,7 @@ hashedInstalledPackageIdVeryShort pkghashinputs@PackageHashInputs{pkgHashPkgId}
   mkComponentId $
     intercalate
       "-"
-      [ filter (not . flip elem "aeiou") (prettyShow name)
+      [ prettyShow name
       , prettyShow version
       , showHashValue (truncateHash 4 (hashPackageHashInputs pkghashinputs))
       ]

cabal-testsuite/src/Test/Cabal/OutputNormalizer.hs

@@ -115,11 +115,6 @@ normalizeOutput nenv =
         -- and replace it with:
         -- > "-package-id","<PACKAGEDEP>"
         --
-        -- Otherwise, output can not be properly normalized as on MacOs we remove
-        -- vowels from packages to make the names shorter.
-        -- E.g. "another-framework-0.8.1.1" -> "nthr-frmwrk-0.8.1.1"
-        --
-        -- This makes it impossible to have a stable package id, thus remove it completely.
         -- Check manually in your test-cases if the package-id needs to be verified.
       . resub ("\"-package-id\",\"([^\"]*)\"")
               "\"-package-id\",\"<PACKAGEDEP>\""